Zhengzhou, the capital city of Henan Province in China, is renowned for its robust industrial sector. Among the various parts of Zhengzhou, the region with the highest concentration of factories is the Economic and Technological Development Zone (ETDZ). This area has emerged as a major industrial hub due to several strategic advantages.

The ETDZ of Zhengzhou is strategically located, providing easy access to major transportation networks such as the Beijing-Kowloon Railway and the national highway system. This connectivity has facilitated the movement of goods and services, making it an attractive location for manufacturers. According to the Zhengzhou Economic and Technological Development Zone Administration, the ETDZ covers an area of approximately 200 square kilometers and has attracted over 10,000 enterprises, including numerous factories.

Data from the Zhengzhou Statistical Bureau indicates that the ETDZ contributes significantly to the city's industrial output. In 2020, the industrial output value of the ETDZ accounted for nearly 40% of the total industrial output value of Zhengzhou. This dominance is attributed to the presence of a diverse range of industries, including electronics, machinery, and food processing.

The electronics industry, in particular, has seen substantial growth in the ETDZ. Companies like Huawei, ZTE, and BYD have established manufacturing facilities in the zone, leveraging the skilled workforce and favorable business environment. The machinery industry is also prominent, with a focus on heavy machinery, automotive parts, and equipment manufacturing. The presence of these industries has led to a significant increase in the number of factories in the ETDZ.

Moreover, the government of Zhengzhou has actively promoted the development of the ETDZ by offering incentives such as tax breaks, land discounts, and streamlined administrative procedures. These policies have further encouraged domestic and foreign investors to set up factories in the zone.

In conclusion, the Economic and Technological Development Zone of Zhengzhou is the part of the city with the highest concentration of factories. This is due to its strategic location, connectivity, diverse range of industries, and government support. The ETDZ's contribution to Zhengzhou's industrial output and economic growth is a testament to its success as an industrial hub.